Project Management

Migrate your BigTime data

Cloud-based PSA built for professional services firms—consulting, architecture, engineering, accounting, and law—to track time, manage resources, and invoice clients from a single platform.

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In its favor

Why people choose BigTime

The signal that keeps BigTime on the shortlist. Sourced from G2, Capterra, and customer scoping calls.

G2 reviewers consistently cite the intuitive, user-friendly interface as the top reason to adopt BigTime, especially for time entry and invoicing workflows that non-technical staff can operate without training.

The platform's all-in-one consolidation appeals to firms replacing separate tools—time tracking, project management, expense logging, and billing in a single system eliminates duplicate data entry across QuickBooks, spreadsheets, and standalone timers.

Professional services firms in engineering, consulting, IT services, and accounting choose BigTime specifically because it is purpose-built for their billing model—hourly, fixed-fee, and T&M arrangements with client-specific rate schedules.

The QuickBooks integration is an official Intuit partner integration, allowing bidirectional sync of clients, projects, labor codes, and expense codes with zero re-entry for accounting-centric firms.

Resource management and staff utilization reporting on the Premier tier gives growing firms visibility into capacity, utilization rates, and cash flow forecasts that spreadsheet-based planning cannot match.

Users report that the mobile app is buggy and crashes frequently, forcing field staff to switch to desktop for accurate time entry—a friction point that leads to missed or incomplete time records.

The task hierarchy is limited to only two levels (parent and child), which frustrates project managers in complex engineering or consulting engagements who need deeper subtask nesting.

Pricing escalates quickly: advanced resource forecasting requires BigTime Foresight (an add-on), and tier upgrades from Essentials to Advanced or Premier carry significant cost increases for growing firms.

The reporting module is considered underpowered—users describe it as lacking depth, flexibility, and visual polish compared to dedicated BI tools, making it difficult to generate the dashboards leadership expects.

BigTime lacks a built-in calendar or visual planner, forcing teams to maintain a separate scheduling tool and reducing the all-in-one value proposition for some buyers.

Reasons to switch

Why people leave BigTime

The recurring reasons buyers give for replacing BigTime. Presented as facts, not knocks.

Platform scorecard

Strengths, weaknesses, and where BigTime fits

Grades across six dimensions, plus a SWOT-style view of where the platform shines and where it falls short.

SWOT — strengths, weaknesses, and use-case fit

Strengths

All-in-one PSA covering time tracking, resource management, invoicing, and expenses for professional services workflowsOfficial QuickBooks Online and Desktop integration with bidirectional sync of clients, projects, and expense codesConfigurable Custom Fields on Projects allow firms to adapt the data model without code changesREST API with XML and JSON support enables programmatic access to all core objects for migration scriptingPremier tier includes financial forecasting, real-time dashboards, and utilization reporting for firm-wide visibility

Weaknesses

Mobile app is widely reported as buggy, crash-prone, and unreliable for field-based time entryTask hierarchy limited to two levels (parent and child only) constrains complex project structures in engineering and consultingNo free trial—prospects must engage a sales rep before testing the software, raising the barrier to evaluationAdvanced resource planning features gated behind BigTime Foresight add-on, increasing total cost beyond the base tierNo built-in calendar or visual scheduling planner—teams must maintain a separate scheduling tool

Where it works

Small-to-mid-sized professional services firms (50–500 employees) in consulting, architecture, engineering, accounting, and legal that need a single platform replacing disconnected tools like spreadsheets, standalone timers, and basic invoicing software.Accounting and bookkeeping firms already running QuickBooks Desktop or Online that want bidirectional sync of clients, projects, labor codes, and expense codes without manual re-entry across systems.Firms with straightforward time-and-materials, fixed-fee, or hourly billing arrangements that require client-specific rate schedules, project budgets, and invoice templates configured per engagement.Organizations with at least one dedicated IT-savvy staff member who can configure the Data Warehouse export, establish the Power BI connection via credential file, and maintain the Delta Sharing setup for advanced analytics.Growing firms that anticipate moving from Essentials ($20/user) through Advanced to Premier and are comfortable budgeting for tier upgrades and the BigTime Foresight add-on as their reporting and forecasting needs deepen.

Where it struggles

Engineering firms and software consultancies with complex, multi-phase projects that require deep task nesting (more than the two-level parent/child hierarchy BigTime supports) to reflect true work breakdown structures.Field-based teams and mobile workers—including site inspectors, auditors, and consultants logging time remotely—who rely on a stable mobile app, given the widely reported crashes and bugs on iOS and Android.Organizations that need built-in visual planning tools such as Gantt charts, calendar views, or integrated project scheduling to manage team capacity and deadlines within the same platform.Firms that require rich, interactive dashboards and executive-level reporting out of the box, without the added complexity of Data Warehouse configuration, BI tool setup, or third-party exports.Businesses with limited budgets or unpredictable headcount growth that cannot absorb rapid pricing escalation when upgrading from Essentials to Advanced or Premier, or when adding the BigTime Foresight add-on for resource forecasting.

Pricing tiers

BigTime pricing overview

BigTime Essentials starts at $20 per user per month. Advanced and Premier tiers are not publicly priced and require a sales conversation. BigTime Foresight, the add-on for advanced resource forecasting, carries an additional cost on top of the selected tier. The platform also acquired WorkRails in 2024, suggesting ongoing product bundling changes that may affect future pricing.

Essentials

Tier 1 of 3

$20/user/month

What's included

Time tracking with billable/non-billable flagsExpense management and receipt loggingBasic project management and task trackingInvoicing with standard templatesQuickBooks Online and Desktop integrationMobile app (iOS and Android)

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Pricing is informational. FlitStack AI does not bill on BigTime's schedule — see our quote-based pricing →

What gets migrated

BigTime object support

Object-by-object support for BigTime migrations. Per-pair details surface during scoping.

Projects

Fully supported

Projects are the central organizing entity in BigTime. We migrate Projects with all standard fields (status, dates, budget, client assignment) plus any active Custom Fields. Archived Projects are migrated as inactive records to preserve historical context without cluttering the destination.

Team Members

Fully supported

Staff records including name, role, department, billable rate, and cost rate are migrated. We map BigTime's Staff permissions to destination Role or User records, preserving who was assigned to which project.

Clients

Fully supported

Clients are the billing entity in BigTime. We carry over Client records with contact details, billing address, and payment terms. Where the destination uses a different CRM terminology (Accounts, Contacts), we merge or split as required by the target schema.

Time Entries

Fully supported

Time entries are migrated with project association, staff member, date, hours, billable/non-billable flag, and optionally the task-level detail. We flag any time entries already invoiced versus Work-in-Progress so the destination does not double-count billing.

Expenses

Fully supported

Expense records include project association, expense code, amount, date, vendor, and receipt attachment references. We map BigTime's expense codes to destination categories during migration.

Invoices

Mapping required

Invoices and invoice drafts migrate with line items tied to time entries or expenses. Already-sent or paid invoices are migrated as historical records with a closed status; draft invoices require special handling to avoid triggering billing on the destination system prematurely.

Custom Fields (Projects)

Mapping required

Custom Fields on Projects are fully supported but require field-level mapping since value types vary (text, dropdown, checkbox, monetary, URL). We preserve the field label and all populated values, converting types where the destination schema requires it.

Resource Allocations

Mapping required

Staff assignments to projects and scheduled hours migrate as Resource Allocations. Where the destination uses a different scheduling model (e.g., sprints or capacity planning), we map allocations to the closest equivalent object and flag gaps in translation.

Budget vs. Actual (Scheduled vs. Actual Reports)

Mapping required

BigTime's Scheduled vs. Actual report captures planned hours/cost/revenue against tracked values. We migrate these as a linked dataset rather than a single object, preserving variance calculations as custom fields on the destination Project.

Attachments

Mapping required

File attachments on Projects, Expenses, and Time Entries are migrated as references or linked blobs where the destination supports attachments. File metadata (filename, type, size, uploader) is preserved; inline images in rich-text fields require format conversion.

Tags / Labels

Mapping required

Tags applied to Projects or Expenses migrate as label or category strings. Where the destination uses a hierarchical taxonomy, we flatten tags into comma-separated lists and flag for manual reorganization if needed.

Integrations (QuickBooks, Salesforce)

Not in this platform

Integration configuration records (OAuth tokens, sync rules, field mappings for QuickBooks and Salesforce) do not migrate because they are platform-specific credentials and endpoint configurations that have no equivalent in other systems. We document which integrations were active so the customer can reconfigure them post-migration.

Data Warehouse (Delta Sharing)

Not in this platform

The Data Warehouse feature is a connection credential for BI tools (Power BI via Delta Sharing) and does not represent business data itself. We do not migrate this credential; we migrate the underlying data through our standard export pipeline instead.

Gotchas

What to watch for in BigTime migrations

Issues we've hit on past BigTime migrations, tagged by severity. FlitStack AI handles every one — surfacing them up front because buyer engineering teams want to know.

High

No trial period before purchase

High

Mobile app time entries are unreliable

Medium

Task hierarchy limited to two levels

Medium

Invoice drafts require explicit closed-status migration

Medium

Data Warehouse Delta Sharing is a one-time credential download

How a BigTime migration works

Four steps, BigTime-specific

Connect

Session-based token auth (POST username/password to /BigtimeData/api/v2/session returns firm ID and token used in X-auth-token and X-auth-realm headers) into BigTime. Scopes limited to read-only on the data we move.

Map

We translate BigTime-specific structures (custom fields, objects, value lists) to the destination's model.

Sample

Test with a 50–200 record subset to validate BigTime quirks before production.

Migrate

Full migration with BigTime rate-limit handling. Rollback available throughout.

FAQ

BigTime migration FAQ

Answers to the questions buyers ask most during BigTime migration scoping. Not seeing yours? Book a call.

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Most BigTime migrations under 1M records finish in 48–72 hours end-to-end. Larger orgs with custom objects or buyer-side security review typically take 5–7 days.

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